Baking-machine.



CARPENTER & E. O. HOFFMAN.

PatentedJan. 9, 1912.

2 SHEETS-SHEET 1.

J. H. CARPENTER & E. O. HOFFMAN.

' BAKING MACHINE; V APPLICATION FILED FEB. 20, 1911. 1314,2375, PatentedJan. 9 1912.

' 2 8HEETSSHEET 2.

' purpose to ated from the traverse of the baking irons s'rans I JOHN H.CARPENTER Ann EDGAR o. HOFFMAN, or" coLUMnus; OHIO; SAID HOEEMAN.

ASSIGNOR TO SAID CARPENTER.

BAKING-MACHINE.

Specification of Letters Patent.

Patented Jan. 9,1912.-

Application filed February 20, 1911. Serial No. 6 09,807.

espeoially for baking cake-like products, such for instance as are usedfor forming ice cream cones.

In carrying out our invention, it is our in its construction-the desiredfeatures of simplicity, durability and strength; to pro 'vide a machinewhereby the cakes may be rapidly and thoroughly baked, the constructionand arrangement being such that the cake is completely baked during thefrom one end of the frame to the other.

Our invention aims to provide a structure of baking machine desirablycomprisiiig superposed "chain-like elements of a complemental naturewhich are desirably in endless form and which are preferably gearedtogether and opersame mechanism. In the production of a machine of thistype, it is necessary that-there be provided such a structural formationthat will permit of the application of the batter to the machine anddesirably to the lower chain justpreced1ng the entry of the cooperatingchains into complemental relation; This is essential because it .is ofthe highest importance that the batter, such as the batter for aconewafer, be baked equally upon both sides and therefore any prolongedexposureof the batter to the atmosphere will cause a baking of the wafermore upon the side resting upon the lower baking plate. It is equallynecessary that there be provided a surface upon the lower chain forrolling the wafer as it is delivered in baked form. Our inventiontherefore contemplates, not only the provision of a baking machine ofchain form, but it aims to producea baking machine for ice cream conesof chain form, which will present each. baking plate in a substantiallyhorizontal position just preceding its entry and has particularapplication to as mechanism of the class referred to designed provide amachine embodying into coactive relation with itscomplemental bakmgplate and which will likewise present each baking plate in asubstantially h0ri-' v zontal position just succeeding the delivery ofthe baked wafer'from between the complemental chains, such deliverybeing for the purpose of rolling the wafer into t-he formof a cone aswill be well understood.

In the production of a chain type of machine for baking ice cream conewafers, we find it extremely desirable to provide a means for preventingseparation of the chains during complemental action and such meansdesirably takes the form of a guide coacting Wltl'l elements carried bythe lower chain for maintaining such lower chain in proper relation tothe upper chain. It is also desirable to form the chains entirely'of thebaking plates with the exception of such joining mechanism as may benecessary and with the exception of a suitable means for coaction withthe said guide wheels for coaction with sprocket wheels for driving thechains.

It is also our purpose to provide a machine embodying in itsconstruction, a plurality of baking irons in the form of endless chains,the irons cooperating to form means for baking the cakes, as they passover the heating device of the machine.

Vith the above recited objects and others of a similar nature in viewour invent-ion consistsin the construction, combination and arrangementof parts set forth in and falling within scope of the appended claims.

= In the accompanying drawings-Figure l is a view in side elevation of amachine embodying our invention, Fig. 2 1s a transverse verticalsectional view taken on the line 2-2 of Fig. 1 looking in the directionof the arrows, Fig. 3 is a longitudinal vertical sectionalview takenthrough the machine shown in Fig. 1, and Fig; {l is a View showing thebaking. irons or plates, and the mannor of hinging or linking the same.

Referring now to the accompanying drawings in detail, the letter Adesignates the frame as an entirety, said frame being composed of anumber of vertical standards 1 and the horizontally disposedlongitudinally extending struts 2 over which the bak ing irons areadapted'to travel, said frame also having additional pairs oflongitudinal struts 3, for supporting the ournal boxes or bearings ofthe shafts of the drive wheels or gears. 1

The numeral 4 indicates a worm shaft provided with a suitable drivingpulley 5, the-worm intermeshing with the-lower gear wheel 6, the latterin turn being provided with a pinion 7 meshing with the intermediatedrive gear 8 which in turn meshes with I scribed. The shaft of theintermediate gear .the top drive car 9, the intermediate gear drivingthe ower center baking irons, while the u per gear imparts motion to theup r shaft, as will be hereinafter deis shown at and carries the pair ofsprockets 11, over which pass the baking plates 12, the latter being inthe form of an endless chain, each plate 12 being linked or connected tothe adjacent 'plate as at 13, said endless chain of plates passing oversprockets 14 mounted uponthe shaft 15, arranged at the opposite end ofthe frame from that carrying the driving mechanism. Similarly the shafts16 and 17 of the. upper series of endless plates are provided withpairsof sprockets 18 and 1.9 respectively over which travel the endlesschain of baking plates as forming the upper section, said plates whichare similar to those of the lower section being hinged or linked in thesame manner,

and as the construction of the two endless chains is thesame, we haveused the same reference numeral 12 for designating the plates and 13 forindicating the link or connection therefor.

The construction of the plates is more clearly shown in perspective inFig. 4, such view illustrating the construction of sections of thebatter receiving plates or irons,

each iron comprising a plate-like member 12 having perforated lugs .orextensions 13' for receiving'the bolt or pivot 13 which fastens the lugto the adjacent lug of the next section. The face of this plate is alsoscored frame and directly or roughened as at 20 to produce any suitabledesign.

Thebaking irons may be heated in any preferred ordesired manner, and inthe drawings we have shown one way of accomplishing this.

.The reference numeral 21 desi ates a gas main extending vertica lythrough ppl .the ii'ame\and from which extends the branch pipes 22controlled by the valves 23, said pipes leading to the mixing, chambers24, where the gas\-is mixed wit-h the air, the perforated heating p ipes25 leading from said mixing chamber longitudinally of the beneath thebaking plates, so that the latter will be heated to properly bake thebatter. The bolts 13 connecting the plates and maintaining the same inchain form through the medium of the pierced lugs 13' are extendedlaterallyiand provided with rollers 13* with which the sprockets 14 mad;for driving the chains. In

iiddition, the rollers 13 of the lower chain clement ride upon the guidestruts 2, previously mentioned, and support the lower chain in positiveand determinate relation to the lower-side of the upper chain.

From the above description, taken in con- Meantime the series of upperbaking irons or platesfis geared totravel toward the right,-

so that as the plates go under the sprockets, they aline with and lieabove the lower plates or those carrying the batter, thereby forming inconjunction with the -lower plates, a two-part baking iron comprisingthe upper plate and the lower plate and bethe sections pass over theperforated heat ing pipe. It will further be seen .that the upper platesare also heated through the medium of the top pipe 21, so thatthe heatis constantly applied to, the top or cover irons during their rotationor travel.

It will be seen that we have provided an exceedingly simple yeteiiicient form' of ma-,

chine, whereby the cakes, may be rapidly and thoroughly baked with acomparatively little expenditure of time and labor.

While we have herein shown and described ont particular embodiment ofour invention,

we wish it to be understood that we do not confine ourselves to all theprecise details of construction set forth herein, as modification andvariation may be made without departing from the spirit of theinventionor exceeding the scope of the appended claims. We wish it to be furtherunderstood that.

we do not limit ourselves to the precise construction of frame, or tothe form and size of the baking plates, or any particular number of thelatter, as the endless chain of plates may be of any length, and thesprockets shifted along the frame accordingly to accommqdate any chainof plates or irons which maybe used.

What we claim, is- 1 1. A baking machine comprising a lower element inthe form of a -traveling'chain tween which the cake lies, and is bakedas of baking plates, an upper coactive element" ,7

in the form of a traveling chain of complemental baking plates, saidupper element being terminated short of said lower element at thedelivery end, and heating means.

2. A baking machine comprising a lower element in the form of atraveling chain of baking plates, an upper coactive element in the formof a traveling chain of comple- I mentalbaking plates, said upperelement being terminated short of said lower element at the deliveryend, and an external heating means for heating said plates duringtravel.

3. A; baking machine comprising a lower element in the form of atraveling chain of baking plates, an upper element in the form of atraveling chain of complemental baking plates terminated short of saidlower element at the delivery end, and means for maintaining the platesof said lower element against sagging away from the plates of said upperelement.

4. A baking machine comprising a lower element in the form of atraveling chain of baking plates, an upper element in the form of atraveling chain of complemental baking plates terminated short of saidlower element at the delivery end, and a guide for maintaining theplates of said lower element against sagging away from the plates of sad upper element..

5. A baking machine comprising a lower element in the form of atraveling chain of baking plates, an upper element in the form of atraveling cham of complemental baking plates terminated short of saidlower element at the delivery end, a guide for maintaining the plates ofsaid lower element against sagging away from the plates of said upperelement, and rollers on said chain of plates for running on said guideto effect such maintenance. s

6. A baking machine comprising a lower element in the form of atraveling chain of baking plates, an upper element in the form of atraveling chain of complemental bak ing plates terminated short of saidlower element at the delivery end, a guide for maintaining the plates ofsaid lower element against sagging away from the plates of said upperelement, sprockets for driving said chain, and laterally extendingelements on said chains of plates for coaction with said sprockets.

7. A baking machine comprising alower element in the form of a travelingch ainof baking plates, an upper element in the form of a travelingchain of complemental baking plates, hinged structure between saidplates of a nature to preclude any material separation of the adjacentends of said plates in any angle they may assume, laterally extendingelements on said hinged structure, and sprockets constructed tocooperate with said lateral elements for driving said chains. I

8. A baking machine comprising a lower element in the form of atraveling chain of baking plates,.an upper element in the form of atraveling chain of complemental baking plates, hinged structure betweensaid plates of-a nature to preclude material separation of the adjacentends of said plates in any angle they may assume, laterally extendingelements on said hinged structure, a guide cooperativewith said elementson one of said chains for maintaining the said chains in proper re ativeposition duringoperation, and sprockets constructed to cooperate withsaid elements for driving said chains.

9.-A bakin machine comprising a plurality of baking plates havinginterfitting hinge-loops upon adjacent ends, a bolt connecting each pairof adjacent ends of said plates through the medium of the saidhinge-loops, lateral extensions .on said bolts, and sprocket wheelsconstructed to drive the chain of plates formed through coactionessential feature of each of said elements, 7

the chain of plates forming the main feature of said lower element beingof sufficient length in comparison with said upper element to presenteach of its plates in substantially horizontal and accessible positionbeforeentrance into and after passage from cooperative relation with thechain of plates of said upper element.

In testimony whereof we aflix our signatures in presence of twowitnesses.

JOHN H. CARPENTER. EDGAR 0. HOFFMAN.

Witnesses:

A. L. PHELPs, INGLE A. Monms.

